第二节：听较长对话，请从A、B、C三个选项中选择最佳选项
听下面一段对话，回答6～7题。
( ▲ )6. What did David do on vacation?
A. He went to the mountains. B. He went fishing. C. He went hiking.
( ▲ )7. Why does he feel unhappy?
A. Because the weather is not good .
B. Because he didn’t got any fish..
C. Because he doesn’t like going fishing..
